Toán Lớp 6: 5^2x-3-2.5^2=5^2.3
lm hộ em với ạ
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Toán Lớp 6: 5^2x-3-2.5^2=5^2.3
lm hộ em với ạ
Comments ( 2 )
=>5^(2x) : 5^3-2.25=25.3
=>5^(2x) :5^3 -50=75
=>5^(2x) :5^3=75+50
=>5^(2x):5^3=125
=>5^(2x):5^3=5^3
=>5^(2x)=5^3 . 5^3
=>5^(2x)=5^6
=>2x=6
=>x=6:2
=>x=3
Vậy x=3